First thoracic vertebral body as reference for endotracheal tube placement

Area of Science:

• Neonatal Medicine
• Radiology
• Pediatric Critical Care

Background:

• Chest radiography is essential for verifying endotracheal tube (ETT) placement in neonates post-intubation.
• Current practice often relies on the medial ends of the clavicles as a reference point.
• Clavicular position can be highly variable, potentially leading to inaccurate ETT placement assessment.

Purpose of the Study:

• To evaluate the reliability of the first thoracic vertebra (T1) as a more constant reference point for neonatal ETT placement compared to the clavicles.
• To determine the optimal radiographic landmark for ensuring correct tracheal intubation in newborn infants.

Main Methods:

• Prospective analysis of 78 chest radiographs from 35 neonates.
• Assessment of the anatomical positions of the carina, clavicles, and T1.
• Comparison of the positional variability between clavicles and the carina/T1.

Main Results:

• The carina was consistently located between T3 and T5 vertebrae (85% at T3-4 or T4).
• Clavicular positions showed significant patient-to-patient and intra-patient variability.
• In 83% of examinations, the clavicles were positioned above the T1 vertebral body.

Conclusions:

• The body of the first thoracic vertebra offers a more stable and reliable landmark than the clavicles for neonatal endotracheal tube placement.
• It is recommended to use the T1 vertebral body as the sole reference point on neonatal chest radiographs for accurate ETT positioning.
• This standardization can improve the safety and efficacy of neonatal intubation procedures.